Home / 15,380.64-21,225.27-8,307.06

Finding the Fourth Proportional to 15,380.64, 21,225.27 and 8,307.06

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Solution

The fourth proportional to 15,380.64, 21,225.27 and 8,307.06 is: 11,463.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,380.64 : 21,225.27 = 8,307.06 : x
  2. Step 2: Convert to fraction form
    15,380.64/21,225.27 = 8,307.06/x
  3. Step 3: Cross multiply
    15,380.64x = 21,225.27 × 8,307.06
  4. Step 4: Simplify right side
    15,380.64x = 176,319,591.41
  5. Step 5: Solve for x
    x = 176,319,591.41/15,380.64
  6. Step 6: Final answer
    x = 11,463.74

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.